Is EVC p.Arg753Trp (c.2257C>T) pathogenic?

EVC p.Arg753Trp (c.2257C>T) is classified Uncertain significance in EVC (ClinVar, Multiple submitters, 2 submitters; last evaluated 2022-12-21). AlphaMissense: likely benign (0.1792); Ultra-rare (popmax 0.0167%, amr); Associated with acrofacial dysostosis, Weyers type.

What condition is associated with EVC p.Arg753Trp (c.2257C>T)?

EVC p.Arg753Trp (c.2257C>T) is associated with acrofacial dysostosis, Weyers type, Ellis-van Creveld syndrome (ClinVar).

How common is EVC p.Arg753Trp (c.2257C>T) in the general population?

EVC p.Arg753Trp (c.2257C>T) is ultra-rare (popmax 0.0167%, amr) (gnomAD).

What do computational predictors say about EVC p.Arg753Trp (c.2257C>T)?

AlphaMissense predicts likely benign (score 0.1792) — an in-silico prediction, not a clinical call.

EVC p.Arg753Trp

c.2257C>T · rs770696062 · VCV2082177

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.1792 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0167%, amr)

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL indeterminate

Conditions

acrofacial dysostosis, Weyers type

Computational evidence

Protein change
AlphaMissense	0.1792	likely benign
REVEL	0.292	indeterminate
SaProt	LLR -8.63	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL is indeterminate.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.19	GERP 0.66, phastCons 0.005
Regional constraint	o/e 1.12	unconstrained · MANE · 100 kb · p 1.2e-05 · regional, not allelic
Overall
CADD	21.4	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0167% Admixed American · 10/59,988 alleles

Filtering AF 0.009% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00681%

Overall 0.00143% 23/1,611,014 alleles · ultra-rare exomes 19/1,458,810 · genomes 4/152,204 · joint denominator

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.0167%	5,999
South Asian	0.0033%	30,290
East Asian	0.00223%	44,880
Remaining individualsnot grpmax-eligible	0.00161%	62,296
European (non-Finnish)	0.000678%	147,493

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: EVC
Protein: p.Arg753Trp
Coding: c.2257C>T
MANE Select: NM_153717
dbSNP: rs770696062
Type: single nucleotide variant
Location: chr4:5798745 (GRCh38)
Gene constraint: LOEUF 1.134 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 74.49

Full EVC gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

acrofacial dysostosis, Weyers type — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Ellis-van Creveld syndrome

Similar variants

EVC p.Arg753Gln Conflicting classifications of pathogenicity ★ ⚠ same residue
EVC c.1098+1G>A Pathogenic/Likely pathogenic ★★ same condition
EVC c.175-2A>G Pathogenic/Likely pathogenic ★★ same condition
EVC c.1777-1G>A Pathogenic/Likely pathogenic ★★ same condition
EVC c.1777-2A>G Pathogenic/Likely pathogenic ★★ same condition
EVC c.1886+1G>C Likely pathogenic ★★ same condition
EVC c.1886+5G>A Pathogenic ★★ same condition
EVC c.1886+5G>T Pathogenic/Likely pathogenic ★★ same condition

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/evc-p-arg753trp (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown